1.8T random/multiple cyl misfire, Help!!

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1.8T random/multiple cyl misfire, Help!!

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1.8T random/multiple cyl misfire, Help!! - 2/26/2006 10:19:28 PM

krazzz

Posts: 11
Joined: 2/16/2006
Status: offline

Hello,
I have more information about my problem. I think that I have ruled out fuel injectors and the coil packs (which are new.) Here is a quick review for those of you who may have not seen my last post. I have a 2000 Passat 1.8T, 5-speed with 105,000 miles. It has recently had problems starting. About one in every five starts it starts very rough and stays that way from 1 min to 5 min. The check engine light comes on and starts to flash. After a few min it run normally and will continue to do so until I shut the car off. The last time I did it I checked the codes. It came back with a P0300- Random/Multiple cylinder misfire, P0301 Cylinder 1 misfire, P0302 Cylinder misfire, and in the past a P0304- Cylinder 4 misfire has shown up. I think I have ruled out fuel related issues and am know looking into spark/timing issues. It seems like most of the ignition controls are in the ECU with the integrated ignition control module. This leaves me with the ECU and camshaft position sensor right? Is there any other sensor involved in spark/timing that could give me a misfire condition? It is strange because it seems to be happening on multiple cylinders. Any other ideas? I can’t really bring it to a dealer because it only does it once a week. The rest of the time it runs flawlessly. Thanks for all your help. I would appreciate and help no matter how small.

Chris
2000 Passat 1.8T 5-speed 105K

Post #: 1

RE: 1.8T random/multiple cyl misfire, Help!! - 3/12/2006 3:27:30 AM

jeremy@conceptdub

Posts: 21
Joined: 3/12/2006
Status: offline

You sure it's not coilpacks?

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Post #: 2

RE: 1.8T random/multiple cyl misfire, Help!! - 3/12/2006 10:42:14 AM

krazzz

Posts: 11
Joined: 2/16/2006
Status: offline

Yes I'm sure, I replaced all coil packs and plugs about a month ago. Thats what I thought it was too.

(in reply to jeremy@conceptdub)

Post #: 3

RE: 1.8T random/multiple cyl misfire, Help!! - 3/12/2006 10:14:21 PM

jeremy@conceptdub

Posts: 21
Joined: 3/12/2006
Status: offline

Have you ran any A/F logs?
ANything else coming up on the Vag-Com?

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www.CONCEPTDUB.com
Distributor of: GHL exhaust systems, Koni coilovers, Forge Motorsports, Neuspeed, and EIP tuning

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Post #: 4

RE: 1.8T random/multiple cyl misfire, Help!! - 3/12/2006 10:16:30 PM

jeremy@conceptdub

Posts: 21
Joined: 3/12/2006
Status: offline

I'm sorry..but..what are all your mods? Software? Stock turbo..or BT setup, etc.??

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www.CONCEPTDUB.com
Distributor of: GHL exhaust systems, Koni coilovers, Forge Motorsports, Neuspeed, and EIP tuning

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Post #: 5

RE: 1.8T random/multiple cyl misfire, Help!! - 3/17/2006 1:09:49 AM

krazzz

Posts: 11
Joined: 2/16/2006
Status: offline

It is totally stock, and all service is up to date. I need to do the timing belt in the next few thousand miles but thats about it.

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Chris Knudsen
2000 VW Passat
1.8 Turbo 5-speed
105k miles

(in reply to jeremy@conceptdub)

Post #: 6

RE: 1.8T random/multiple cyl misfire, Help!! - 3/17/2006 3:03:38 AM

jeremy@conceptdub

Posts: 21
Joined: 3/12/2006
Status: offline

hmmm...have you cleared the codes to see if they come back?

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www.CONCEPTDUB.com
Distributor of: GHL exhaust systems, Koni coilovers, Forge Motorsports, Neuspeed, and EIP tuning

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Post #: 7

RE: 1.8T random/multiple cyl misfire, Help!! - 3/17/2006 5:59:33 PM

krazzz

Posts: 11
Joined: 2/16/2006
Status: offline

yes I have cleared the codes many times, the Random/ Multiple cyl. missfire P0300 always comes back, the other cyl. codes are sometimes different. I have had missfire codes come up for all cyl. except #3.

_____________________________

Chris Knudsen
2000 VW Passat
1.8 Turbo 5-speed
105k miles

(in reply to jeremy@conceptdub)

Post #: 8

RE: 1.8T random/multiple cyl misfire, Help!! - 3/18/2006 12:21:22 PM

Jsd

Posts: 368
Joined: 9/20/2005
Status: offline

you haven't mentioned if you replaced your plug and wires??

-Jeff

< Message edited by Jsd -- 3/18/2006 12:22:25 PM >

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Post #: 9